Debunk claim:

Yatseniuk’s official site states that on November 29 he was in Brussels where he delivered a speech to the European Parliament Foreign Affairs Committee. Yatseniuk also spoke at a conference “War in eastern Ukraine: military conflict, diplomacy and humanitarian crisis” that same day. According to Yatseniuk’s site, the former Prime Minister had several high profile meetings in Europe in November, all of which were featured in various postings on Facebook and Twitter. http://www.stopfake.org/en/fake-former-ukrainian-pm-yatseniuk-flees-ukraine/